X-RAY OUTBURST OF THE PECULIAR SEYFERT GALAXY IC 3599

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dc.creatorGrupe, D.
dc.creatorBeuermann, K.
dc.creatorMannheim, K.
dc.creatorBade, N.
dc.creatorThomas, H. -C.
dc.creatorde Martino, D.
dc.creatorSchwope, A.
dc.date1995-05-18
dc.date.accessioned2026-07-07T02:19:47Z
dc.date.available2026-07-07T02:19:47Z
dc.descriptionWe report optical, soft X-ray, and UV observations of the peculiar Seyfert galaxy IC 3599 using data obtained with ROSAT and IUE. Most remarkably, we discovered a rapid decrease of the X-ray flux by a factor of about 100 within one year and a more gradual decrease thereafter. The X-ray spectrum of IC 3599 was soft at flux maximum and became even softer as the flux decreased. Simultaneously with the late decrease of the X-ray flux, we observed a decrease in the strength of highly ionized optical iron lines. We discuss several explanations for this behaviour including an accretion disk instability and tidal disruption of a star orbiting a central massive black hole.
dc.description4 pages, compressed PostScript, Letter accepted by Astron. & Astrophys., also avalailable on the web (http://www.uni-sw.gwdg.de/preprints/preprints.html)
dc.identifierhttps://arxiv.org/abs/astro-ph/9505085
dc.identifierhttp://arxiv.org/abs/astro-ph/9505085
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/10007
dc.subjectAstrophysics
dc.titleX-RAY OUTBURST OF THE PECULIAR SEYFERT GALAXY IC 3599
dc.typetext

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